_:vb50994981	<http://www.w3.org/ns/r2rml#column>	"twitter_url" .
_:vb50994981	<http://www.w3.org/ns/r2rml#termType>	<http://www.w3.org/ns/r2rml#IRI> .
_:vb50994981	<http://www.openlinksw.com/schemas/virtrdf#bnode-row>	"180" .